Improvement in detachable book-covers



E. F. NEWKIRK. Detaohable Bock-(Devers. No. 2o s,ess.

Patented Oct. 8, 1878.

NITED STATES PATENT OFFICE.

EDWARD F. NEWKIRK, OF NEWARK, 0H10.

IMPROVEMENT IN DETACHABLE BOOK-COVERS.

Specifioniion forming part of Letters Patent No. 208,689, dated OctoberE, 1879; application 1i1ed March 15, 1878.

T0 all whom zt may concem:

Be it known that I, EDWARD F. NEWKIRK, of Newark, in the county ofLicking and State of Ohio, have invented a new and useful Improvement inDetachable Oovers for Memo randum-Books, of which the following is afull, clear, and exact description.

This invention relates to detachable covers for memorandum-books,writing-tablets, and the like, the leaves of which are at one end orside permanently connected together by a reg nlar backing.

My invention consists in providing one of the flaps of the cover Withtwo sockets on opposite edges, for the reception and retention of thebound back of the memorandnm-book or tablet, each of the sockets beingconstructed with a fixed in wardly-proj ectin g need le-pointed pin toenter between the bonnd leaves, and one of them being pivoted or madelaterally adinstable, so that it can be swnng out of the way when itbecomes necessary to insert or remove a tablet or book.

Tire swinging or adj ustable socket is constructed to catch or look ontoa detent when in position around the corner of the book.

In the accompanying drawings, Figure 1 is a perspective view of myimproved detachable cover, with the front flap thereof thrown up to showthe tablet contained therein. Fig. 2 is a similar perspective view ofthe cover, but withont the tablet, and showing the adjustable soeketswung outwardly to admit of the insertion of a tablet or book. Fig. 3illustrates the holding-sockets in perspective.

The same letters of reference indicate like parts in all the figures.

The flaps A of the cover may be made of any suit-able material andconnected together by a flexible back, B, in the usual manner.

C and D refer to the respective sockets for secnring the book or tabletto the cover. These sockets are preferably made of sheet metal, in theform best shown in Fig. 3, the base-plate being elongated to afford along bearing for firmly securing them to one of the flaps of the cover.In the exampIe shown they are located near the flexible back B and atopposite edges of the back flap of the cover.

Each socket has a needle-pointed inwardly and laterafly-projecting fixedpin a, adapted to enter between the bound leaves of the 10001: ortablet.

Socket 0 is permanently and rigidly secnred, but socket D is soconnected to the flap that it may be moved to one side in an outwarddirection, at least so far as to permit of the latera1 insertion of thebook or tablet in socket 0. To this end it is here shown as pivoter], atd. near the extreme end of its eiongated baseplate D, and as providedWith a hole, d, therein, adapted to engage a stud, (1*, on the flap ofthe cover when it is swnng around to clasp the corner of the book ortablet after the lateral insertion of the saine in socket 0.

The stnd 61 projects only slightly from the flap, and the base-plate Dof socket D is made somewhat elastio, so that it can be bent up slightlyt0 spring it over the said stud, or to disengage it therefrom, as thecase may be.

It Will be observed that the sockets surronnd the corners of the baek ofthe book or tablet, and that the needle-pointed pins will prevent theendwise withdrawal thereof.

Te hold tablets from Which the leaves are successively torn, the tabletsmust be perforated near the back, so that stubs Will romain With thebacking, by which the tablet may be retained until all its leaves havebeen usedup.

It is clear that the adjustable socket can be mounted in quite adifferent manner from that I have shown and described without departingfrom the principle of my invention.

VVhat I daim as my invention, and desire to secure by Letters Patent,is-

1. A detachable cover for memorandnm books, writing-tablets, and thelike, o'ne flap of which is provided with a pair of sockets, havinginwardly projecting needle pointed pins, one of the sockets beinglaterally shiftable, substantially as and for the pnrpose specified.

2. The combination, snbstantiafly as specified, With one of the flaps ofa detachable cover for memorandum-books, writing-tablets, and the like,of a fixed socket having an inwardlyprojecting needle-pointed pin, asimilarly-constrncted pivoted socket, and a stud for locking saidpivoted socket.

In testimony whereof I have signed myname to the foregoing specificationin the presence of two subscribing witnesses.

EDVVARD F. NEWKIRK.

Witnesses J ONATHAN REES, HENRY D. VOODBRIDGE.

